Tintri: Fix config option access
Tintri: Fix config option access

Issue was casued by following commit
1f62a411f4c241f9105a8ffb53fa2e7a1f71902a

Change-Id: Ic94a74f4ec324ba12b4282ad6ce221194b033645

openstack/cinder,Datera/cinder,j-griffith/cinder,mahak/cinder,mahak/cinder,phenoxim/cinder,Datera/cinder,phenoxim/cinder,openstack/cinder,eharney/cinder,eharney/cinder,j-griffith/cinder